DESIGN OF BACKFILL AS SUPPORT IN POLISH COAL-MINES

被引：0
|
作者：
PALARSKI, J
机构：
来源：
JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY | 1994年 / 94卷 / 08期
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D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Longwalling is used in most Polish coal seams, with backfilling to support the roof, to create an artificial hangingwall, to prevent movement of the rockmass, and to eliminate the fire hazard in abandoned mine workings. This paper discusses the results of tests conducted on 7 different backfill mixtures, and gives equations for the estimation of the flow of backfill slurries through gravitational pipelines.
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页码：218 / 226
页数：9
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